FIGURE 2.

Chronic NT exposure blocks turpentine-induced expression of IL-1β in brain. Rats were exposed to saline (CON) or NT for 3 wk and then injected i.m. with turpentine (Turp). At 24 h after turpentine injection, brain mRNA was analyzed for IL-1β expression by qPCR. Results are mean ± SEM from five rats/group * P ≤ 0.05.